4137451561 has 2 divisors, whose sum is σ = 4137451562. Its totient is φ = 4137451560.

The previous prime is 4137451559. The next prime is 4137451583. The reversal of 4137451561 is 1651547314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2269569600 + 1867881961 = 47640^2 + 43219^2 .

It is a cyclic number.

It is not a de Polignac number, because 4137451561 - 2¹ = 4137451559 is a prime.

Together with 4137451559, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4137451561.

It is not a weakly prime, because it can be changed into another prime (4137451511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2068725780 + 2068725781.

It is an arithmetic number, because the mean of its divisors is an integer number (2068725781).

Almost surely, 2^4137451561 is an apocalyptic number.

It is an amenable number.

4137451561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4137451561 is an equidigital number, since it uses as much as digits as its factorization.

4137451561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 4137451561 is about 64323.0251232014. The cubic root of 4137451561 is about 1605.3792333100.

Adding to 4137451561 its reverse (1651547314), we get a palindrome (5788998875).

The spelling of 4137451561 in words is "four billion, one hundred thirty-seven million, four hundred fifty-one thousand, five hundred sixty-one".